COVID-19 Clinical Severity Index (CSI) | University Health Service

Fall 2022 Semester

Week 36 (8/28/22 - 9/3/22)
Week 37 (9/4/22 - 9/10/22)
Week 38 (9/11/22 - 9/17/22)
Week 39 (9/18/22 - 9/24/22)
Week 40 (9/25/22 - 10/1/22)
Week 41 (10/2/22 - 10/8/22)
Week 42 (10/9/22 - 10/15/22)
Week 43 (10/16/22 - 10/22/22)
Week 44 (10/23/22 - 10/29/22)
Week 45 (10/30/22 - 11/5/22)
Week 46 (11/6/22 - 11/12/22)
Week 47 (11/13/22 - 11/19/22)
Week 48 (11/20/22 - 11/26/22)
Week 49 (11/27/22 - 12/3/22)
Week 50 (12/4/22 - 12/10/22)
Week 51 (12/11/22 - 12/17/22)

Week 19 (5/1/22 - 5/7/22)
Week 20 (5/8/22 - 5/14/22)
Week 21 (5/15/22 - 5/21/22)
Week 22 (5/22/22 - 5/28/22)
Week 23 (5/29/22 - 6/4/22)
Week 24 (6/5/22 - 6/11/22)
Week 25 (6/12/22 - 6/18/22)
Week 26 (6/19/22 - 6/25/22)
Week 27 (6/26/22 - 7/2/22)
Week 28 (7/3/22 - 7/9/22)
Week 29 (7/10/22 - 7/16/22)
Week 30 (7/17/22 - 7/23/22)
Week 31 (7/24/22 - 7/30/22)
Week 32 (7/31/22 - 8/6/22)
Week 33 (8/7/22 - 8/13/22)
Week 34 (8/14/22 - 8/20/22)
Week 35 (8/21/22 - 8/27/22)

Week 53/1 (12/26/21 - 1/1/22, Note: Week 53 in 2021 is synonymous with Week 1 in 2022)
Week 2 (1/2/22 - 1/8/22)
Week 3 (1/9/22 - 1/15/22)
Week 4 (1/16/22 - 1/22/22)
Week 5 (1/23/22 - 1/29/22)
Week 6 (1/30/22 - 2/5/22)
Week 7 (2/6/22 - 2/12/22)
Week 8 (2/13/22 - 2/19/22)
Week 9 (2/20/22 - 2/26/22)
Week 10 (2/27/22 - 3/5/22)
Week 11 (3/6/22 - 3/12/22)
Week 12 (3/13/22 - 3/19/22)
Week 13 (3/20/22 - 3/26/22)
Week 14 (3/27/22 - 4/2/22)
Week 15 (4/3/22 - 4/9/22)
Week 16 (4/10/22 - 4/16/22)
Week 17 (4/17/22 - 4/23/22)
Week 18 (4/24/22 - 4/30/22)

Week 40 (9/26/21 - 10/2/21)
Week 41 (10/3/21 - 10/9/21)
Week 42 (10/10/21 - 10/16/21)
Week 43 (10/17/21 - 10/23/21)
Week 44 (10/24/21 - 10/30/21)
Week 45 (10/31/21 - 11/6/21)
Week 46 (11/7/21 - 11/13/21)
Week 47 (11/14/21 - 11/20/21)
Week 48 (11/21/21 - 11/27/21)
Week 49 (11/28/21 - 12/4/21)
Week 50 (12/5/21 - 12/11/21)
Week 51 (12/12/21 - 12/18/21)
Week 53/1 (12/26/21 - 1/1/22, Note: Week 53 in 2021 is synonymous with Week 1 in 2022)

Adapted from the NIH COVID-19 Treatment Guidelines¹

I. Asymptomatic - Individuals who test positive for SARS-CoV-2 using a virologic test (i.e., a nucleic acid amplification test [NAAT] or an antigen test) but who have no symptoms that are consistent with COVID-19.
II. Mild – Individuals who have any of the various symptoms of COVID-19 (e.g., fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell) without shortness of breath, dyspnea, or abnormal chest imaging.
III. Moderate – Individuals who show evidence of lower respiratory disease during clinical assessment or imaging (e.g., shortness of breath, dyspnea, or abnormal chest imaging) and have an oxygen saturation (SpO₂) of ≥94% on room air at sea level.
IV. Severe – Individuals who have SpO₂ < 94% on room air at sea level, a ratio of arterial partial pressure of oxygen to fraction of inspired oxygen < 300 mm Hg, a respiratory rate >30 breath per minute, or lung infiltrates >50%
V. Critical – Individuals who have respiratory failure, septic shock, and/or multiple organ dysfunction.